Exhibit 12 FIRST AMENDMENT TO AGREEMENT AND PLAN OF MERGER FIRST AMENDMENT TO AGREEMENT AND PLAN OF MERGER, dated as of January 7, 1997 (this "First Amendment"), among AON CORPORATION, a Delaware corporation ("Parent"), SUBSIDIARY CORPORATION, INC., a...Agreement and Plan of Merger • January 9th, 1997 • Alexander & Alexander Services Inc • Insurance agents, brokers & service
EXHIBIT 10 ALEXANDER & ALEXANDER SERVICES INC. 24 December 1996 Dear Holder of Class C Common Stock: I am pleased to inform you that on 11 December 1996, Alexander & Alexander Services Inc. ("Alexander & Alexander") entered into an Agreement and Plan...Merger Agreement • January 9th, 1997 • Alexander & Alexander Services Inc • Insurance agents, brokers & service
